Prompt the user to input 2 positive integers using while loop then print their greatest common divisor - Python

Question

I would like the user to input two positive integers at runtime and the while loop to read the input and store it as a variable to them calculate the greatest common divisor using math lib. I've

from math import gcd
from sys import argv
count = 0

while count < 2:
    count +=1
    num = int(input("Enter 2 numbers"))
    result = gcd(int(argv[1]), int(argv[2]))
print(result)

ValueError: invalid literal for int() with base 10: '--ip=127.0.0.1'

Input at runtime: 16, 28 Expected Output: 4